rodriguez1414 rodriguez1414

09-01-2015
Mathematics

contestada

Solve by the elimination method.
6x+9y=57
-6x+y=33

Respuesta :

16-01-2015

6x+9y=57
-6x+y=33

------------------ (+)

6x+(-6x)+9y+y=57+33

10y=90 /:10

y=9

-6x+y=33

-6x+9=33 /-9

-6x=24 /:(-6)

x=-4

Answer Link

Otras preguntas

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. If monicas late fee is $2.75, write and solve a linear equation to find how m

Why is the huronian supergroup rock formation particularly interesting to scientists?

there are 750 students in class 7 and 625 students in class 8 what percent is class 7 of the class 8?

Marianne buys a house for $150,000, and the value of the house increases at a rate of 1.2% per year. How much will the house be worth in 10 years? Round to the

who was the first president

Solve for 2 unknowns 3y + 3x =24 6y+3x = 39

Freezing and thawing of water can cause creep, which is?

Michael spent 4976. We exchange the Kuna she had left for US dollars. The exchange rate was one Kuna two $0.17. How many US dollars did Mike get?

Which is a tough and flexible layer that surrounds plant cells, as well as some algal and bacterial cells?

Which of the following are considered communication barriers? A. Eye contact, observation, and body language B. Ordering, moralizing, diagnosing, and threateni